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Treyarch teases more COD Black Ops DLC

Will you buy a fourth map pack?

A fourth set of downloadable maps for Call of Duty: Black Ops? Can it be true?

David Vonderhaar, design director at Black Ops developer Treyarch, has hinted so.

"I can't talk to anything beyond Annihilation, but keep your eyes peeled..." he teased Digital Spy.

Annihilation, the third lump of Black Ops DLC, launches today on Xbox Live Marketplace. It's a timed Xbox 360 exclusive. Stuffed in are four maps - Hanger 18, Drive-In, Silo, Hazard - and one zombie level called Shangri-La.

You pay: 1200 Microsoft Points.

Treyarch will host a double XP weekend from Friday to celebrate.

First Strike was the first map pack released for Call of Duty: Black Ops. Escalation was the second.

Eurogamer's Call of Duty: Black Ops - First Strike review awarded 7/10. "A fine addition," we declared.

Eurogamer's Call of Duty: Black Ops - Escalation review also awarded 7/10. "In conclusion: another good map pack," we wrote.

Will Annihilation follow suit?

Zombies in Black Ops: Annihilation.